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Power-Programmierung
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CD1.mdf
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assemblr
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library
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zenlib
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lst8_16.asm
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Assembly Source File
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1990-02-15
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584b
|
25 lines
;
; *** Listing 8-16 ***
;
; Adds AL to each element in an array until the result
; of an addition exceeds 7Fh.
; Uses two jumps in the loop, with a final INC to adjust
; BX for the last addition.
;
jmp Skip
;
Data db 999 dup (0),7fh
;
Skip:
mov bx,offset Data
mov al,2 ;we'll add 2 to each array element
call ZTimerOn
AddLoop:
add [bx],al ;add the value to this element
js EndAddLoop ;done if Sign flag set
inc bx ;point to the next array element
jmp AddLoop ;do the next element
EndAddLoop:
inc bx ;adjust BX for the final addition
call ZTimerOff